SE322 Final 252 — Interactive Practice Exam

Availability: the system is ready to carry out its task when needed; it detects, recovers from and prevents faults (e.g. uptime, repair time).
Performance: timeliness — how quickly the system responds to events (latency, throughput).
Security: the ability to resist unauthorized access while still serving legitimate users.
Modifiability: the cost in time and money of making a change to the system.
Usability: how easy the system is to learn and use, and how well it supports users.
Testability: how easily the software can be made to show its faults through testing.

How this works. Question 1 is graded exactly. The written and diagram parts are checked for the key ideas the marker looks for, so their score is an estimate. Sketch diagrams on paper, type the pattern and the main classes or components, then compare with the model answer that appears after you submit.